Jin-young Jung (Gi-yeong)Kim Yoon-seok (Sung-wook)Kim Sang-Ho (Hyeok-su)Keun-Suk Jang (Hyun-Joon)Ho-jung Kim (Gi-yeong's Wife)Ko AsungJun-seok BangHyun-Sung HwangJae-hwan Jeong ((cameo))Min-joon Jeong ((cameo))Seong-mi JeongShin Jeong-geun (Club Owner)Jin-mo JooYoung-Sun Kim (Hyuk-Soo's wife)Choo Kwi-jungByung-hoon LeeJeong-yeon LeeJi-Yeon Lee (Mi-yeon)
Sang-woo, the leader of college rock band Volcano, dies and sets up a reunion for Gi-yeong and the other members of the group. Former bass player Seong-wook lives a hand-to-mouth existence working two jobs. Drummer Hyeok-su is a single father struggling to make a living as a car salesman. Unemployed lead guitarist Gi-yeong dreams of taking over Volcano as the new frontman. At the funeral Gi-yeong suggests they reform the band, but his former band mates all reject the idea. But Gi-yeong persists and gets each to relent, setting the stage for a rock and roll reunion.